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Publications associées (17)

On The Strategies Towards Isothermal Gas Compression And Expansion

Alfred Rufer, Mahbod Heidari, Sylvain Lemofouet-Gatsi

Isothermal compression/expansion is regarded as the most promising process in many applications and many researchers and inventors have tried different methods to achieve this goal. The current article first studies the gradual roadmap from adiabatic towar ...

2014

Innovative isothermal oil-free co-rotating scroll compressor-expander for energy storage with first expander tests

Daniel Favrat, Angel Iglesias

The development of an efficient isothermal turbine and compressor is essential for the realization of a small-scale compressed air energy storage (CAES). This article presents the theoretical development of an oil-free co-rotating scroll air compressor and ...

Pergamon-Elsevier Science Ltd2014

Heat Transfer Modelling of a Co-rotating Scroll Compressor

Emil Shaykhilislamov

This report accounts for making the heat transfer model in co-rotating scroll compressor. This mathematical model was proposed according to the working principle of the compressor, its geometry and basic thermodynamics’ laws. Previous papers and reports, r ...

2013

Dynamic Modeling and Simulation of Two-stage Compression Heat Pumps with Flash Economizer

Daniel Favrat, Jean-Baptiste Carré, Samuel Henchoz, Simon Gailledrat

Multistage heat pumps are one of the most efficient technologies for delivering heat at temperatures below 100°C, Thanks to their fairly high exergy efficiency. In the recent years the development of radial compressors mounted on gas bearings have unlock t ...

2013

Modeling of a Reciprocating Air Compressor using Energetic Macroscopic Representation

Alfred Rufer, Mahbod Heidari

This article introduces the energetic macroscopic representation (EMR) as approach for the dynamic nonlinear modeling of a reciprocating air compressor. EMR has been introduced recently for research development in complex electromechanical systems. It is b ...

2012

Design, experimental investigation and multi-objective optimization of a small-scale radial compressor for heat pump applications

Daniel Favrat, Jürg Alexander Schiffmann

The main driver for small scale turbomachinery in domestic heat pumps is the potential for reaching higher efﬁciencies than volumetric compressors currently used and the potential for making the compressor oil-free, bearing a considerable advantage in the ...

2010

Pompe à chaleur bi-étagée à haute performance.

Daniel Favrat, Michele Zehnder

The objectives of the present work is to theoretically and experimentally demonstrate the advantages of a two-stage cycle equipped with an economizer and single variable speed compressor for heat pumps using air as cold source. Furthermore, an efficient de ...

1997

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